Windmill pullout



E. J. KNAPP WINDMILL PULLOUT Oct. 17; 1933.

Filed Sept. 29, 1932 Patented Oct. 17, i933 I r r f I p UNITED STATESPATENT O F CE" WINDMILL PULLOUT Edelbert J ohn Knapp, Norton, Kans.

Application September 29, 1932 Serial No. 635,410

2 Claims. (Cl. 170-46) My invention relates to windmill pullouts, itstrol is positioned in the lower portion of the tower object being theprovision of a pullout which is so that it will be accessible at alltimes to the user free from the defects found in similar pullouts f thewindmill without necessitating his climbnow in use on windmills whichare on the market. ing to the top of the tower. The control is known 5An important object of the invention is the as a pullout and the artdiscloses-numerous vari- 6o.

provision of a pullout which is entirely exposed ations. It is my objectto not only simplify the on the outer side of the mast so that all partsof pullout but to make it more reliable in action and the pullout arereadily accessible. to make it more readily accessible for repairs.

Another object of the invention is the provi- The windmill head isswiveled about a vertical 10 sion of anovel swivel construction in thewindmill axis on a tower which usually consists of four 65. pullout forpreventing injury to parts of the pullposts 15, the tower having acasting 16 for holdout mechanism. ing the posts together at their upperextrem- Another object of the invention is the provision ities and forsupporting the head 11 with the of a mast which is provided with agroove on its working parts of the windmill. The mast pipe is outer sidefor serving as a runway for the pullout 17 is rigid with the head 11 andit depends there- 70; chain without interfering with the turning of thefrom. It consists of an upper and a lower part windmill head on itsvertical axis in the tower. joined together, the upper part receivingthe loW- Another of my objects is the provision of a coler part intelescoping relation and providing a lar surrounding the mast of thewindmill and shoulder which rests on the casting 16. The mast 29 havinga loose connection to permit the free ropipe is provided atits lower endwith a guide in 75 tation of the mast pipe therein, the rotation of theform of a spider 18 which is secured to all the collar being limited soas to prevent kinking four of the tower posts 15. The spider 18 preortwisting of the pullout wire. vents the rocking of the mast pipe 17.

Having in view these objects and others which The pullout chain 19 issecured to the vane will be pointed out in the following description,frame 13 and it then passes around a pulley 20 so I Will nOW refer to te d aw i which and then another pulley 21, terminating in an ure 1 i a vw n l va ion showing th S-link 22 which is connected to an L-shaped linkupp part f a w nd ll w r and a portion 23, the L-shaped link 23 being inturn secured to of the windmill head and S W particularly, a collar 24surrounding the mast pipe 1'7. The

3 my novel form of pullout. collar 24 is free to slide up anddown on themast 35.

Figure 2 is a v w in p p ve f a portion pipe 17 but it is prevented fromfreely rotating of the pullout mechanism in its relation to the th reon,The mast pipe is providedthroughout mast, the view being d aw '6 9J rdscale. the major portion of its length with a groove 25 The windmill stu tu its i f common nwhich is formed in its outer wall. The groove 25struction asfound in many windmills. The hood is deep enough to seat thechain 19 so that the 9p l0 encloses with the head 11 the working parts mt pipe 1'7 1 free to rotate in the casting 16 of the windmill. The wheelshaft 12 projects out without interfering with the chain 19. i throu h eh d 1 d it s d i D- Surrounding the collar 24 are two clamping portingthe Wind Wheel. The Vane frame 13 is members26 which loosely engage thecollar 24.

40 journaled the Windmill head 11, its axis being The clamp 26 is freeto rotate about the collar ow a The frame 13 Supports the V 24 and itserves as a supportfor the elongated the position of which determineswhether the U-shaped link 2'7, The clamp 26 is provided with wind wheelshall be in or out of the wind. The a ar 28 which is sufficiently longto pass beshaft 12 and th fr m 13 r po ion d n li ntween two of theposts of the tower. This is done 45 ent 01" substantially so when thewind wheel is in order to limit the rotation of the clamp 26 due in thwind n these w parts are p p ndicuto its friction with the collar 24.The rotation lar to each other when the wind wheel is out of f th clamp26 is thus limited to the arc deterthe wind. As thus far described thedetails are mined by the distance between two posts of the found innumerous windmills and they are of to r, The device is completed byattaching a 50 such common knowledge that further description wire 29 tothe lower loop of the link 2'7 and then is believed o beunnecessaryfastening the wire at its lower extremity to the The actionof the Windmill is Stopped y u npullout lever found at the lower portionof every ing the vane frame 13 on its axis 14 until the windmill tower.I

' frame 13 assumes a position substantially at right Having thusdescribed my invention in such 55 angles to the shaft 12. Forconvenience the con-' full, clear, and exact terms that its constructionsaid pulley and secured at its extremities to said" vane frame and tosaid collar respectively, said flexible member being seated in thegroove in said mast, and means for sliding said collar on said mast,said collar being held against rotation on said tubular mast by saidflexible member.

'ZJA windmill including a tower and a head, a 1

tubular mast depending from said head and journaledin said tower, saidmast being provided with a vertical groove on the outer side thereof, aslidable member seated within the groove of said mast and passingthrough the bearing of said mast in said tower, a collar slidablysecured to said mast about the lower portion thereof, said slidablemember: being secured to the under side of said collar, meansforlimiting the rotation of 7 said collar about said mast, for preventingthe twisting of said slidable member, a U-shaped member depending fromsaid collar, and a manu--v ally operable pullout wire depending fromsaid U-shaped member.

EDELBERT JOHN KNAPP.

